Camera module facilitating heat dissipation
a technology of camera modules and heat dissipation, applied in the field of camera modules, can solve the problems of reducing generating heat that cannot be efficiently dissipated, and affecting the image quality of the camera modul
Active Publication Date: 2012-08-23
POLIGHT TECH LTD
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present disclosure relates to a camera module that can efficiently dissipate heat, which can prevent image quality degradation due to increased air pressure. The technical effect of the invention is to provide a camera module that can effectively dissipate heat and maintain image quality.
Problems solved by technology
In operation, the image sensor generates heat, which cannot be efficiently dissipated.
As a result, increased air pressure in the enclosed space may cause the PCB to deform, which in turn may cause the lens holder and the image sensor to be displaced, decreasing image quality of the camera module.
Method used
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Embodiment Construction
[0011]Embodiments of the present disclosure will now be described in detail with reference to the drawings.
[0012]Referring to FIG. 1, a camera module 100, according to an embodiment, includes a printed circuit board (PCB) 10, an image sensor 20, a lens barrel 30, a lens holder 40, and a lens 50.
[0013]The PCB 10 is a flexible PCB (FPCB) in this embodiment and thus is readily deformed.
[0014]The image sensor 20, such as a couple charge-coupled device (CCD) sensor or a complementary metal oxide semiconductor (CMOS) sensor, is configured for capturing images.
[0015]The lens barrel 30 is a tube which defines a barrel through hole 32 therethrough and an external threaded section 34 in the outer surface of the lens barrel 30, generally at the image-side end of the lens barrel 30.
[0016]Also referring to FIG. 2, the lens holder 40 includes an outer sensor cover 41, an inner sensor cover 43, and a barrel coupler 45.
[0017]The outer sensor cover 41 is cuboid with the bottom side open, and include...
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A camera module includes a printed circuit board (PCB), an image sensor fixed to the PCB, a lens holder fixed to the PCB and covering the image sensor, a lens barrel coupled to the lens holder, and a lens received in the lens barrel. The lens holder includes an inner sensor cover and an outer sensor cover surrounding the inner sensor cover. The image sensor, the inner sensor cover, the lens barrel and the lens define an enclosed space. The inner sensor cover and the outer sensor cover define an intermediate space. The inner sensor cover defines an inner dissipation hole communicating the enclosed space with the intermediate space. The outer sensor cover defines an outer dissipation hole that communicates the intermediate space with the outside of the outer sensor cover. The inner dissipation hole and the outer dissipation hole are misaligned to prevent the ingress of light and dust.
Description
BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to camera modules and, particularly, to a camera module capable of efficiently dissipating heat.[0003]2. Description of Related Art[0004]Camera modules often include a printed circuit board (PCB), a lens holder disposed on the PCB, an image sensor disposed on the PCB and received in the lens holder, a lens barrel held by the lens holder, and a lens received in the lens barrel. The PCB, the lens holder, the lens barrel, and the lens cooperatively form an enclosed space, in which the image sensor is received. In operation, the image sensor generates heat, which cannot be efficiently dissipated. As a result, increased air pressure in the enclosed space may cause the PCB to deform, which in turn may cause the lens holder and the image sensor to be displaced, decreasing image quality of the camera module.[0005]Therefore, it is desirable to provide a camera module, which can overcome the limitations described.BRIEF DES...
Claims
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IPC IPC(8): H04N5/225
CPCH04N5/2257H04N23/57
Inventor HOU, SHENG-HUNGLAI, WEN-CHING
Owner POLIGHT TECH LTD